from __future__ import absolute_import
from sqlalchemy import Column, Date, ForeignKey, Integer, String, Table
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import mapper, relationship
Base = declarative_base()
association_table = Table('association', Base.metadata,
Column('pet_id', Integer, ForeignKey('pets.id')),
Column('reporter_id', Integer, ForeignKey('reporters.id')))
class Editor(Base):
__tablename__ = 'editors'
editor_id = Column(Integer(), primary_key=True)
name = Column(String(100))
class Pet(Base):
__tablename__ = 'pets'
id = Column(Integer(), primary_key=True)
name = Column(String(30))
reporter_id = Column(Integer(), ForeignKey('reporters.id'))
class Reporter(Base):
__tablename__ = 'reporters'
id = Column(Integer(), primary_key=True)
first_name = Column(String(30))
last_name = Column(String(30))
email = Column(String())
pets = relationship('Pet', secondary=association_table, backref='reporters')
articles = relationship('Article', backref='reporter')
favorite_article = relationship("Article", uselist=False)
# total = column_property(
# select([
# func.cast(func.count(PersonInfo.id), Float)
# ])
# )
class Article(Base):
__tablename__ = 'articles'
id = Column(Integer(), primary_key=True)
headline = Column(String(100))
pub_date = Column(Date())
reporter_id = Column(Integer(), ForeignKey('reporters.id'))
class ReflectedEditor(type):
"""Same as Editor, but using reflected table."""
@classmethod
def __subclasses__(cls):
return []
editor_table = Table('editors', Base.metadata, autoload=True)
mapper(ReflectedEditor, editor_table)